Control Functions; Mechanical Data; Installation; Safety Instructions - Burkert 2012 Operating Instructions Manual

7.4.3 Media
Control medium neutral gases, air
Flow medium water, alcohol, fuel, hydraulic liquids,
saline solutions, lye, organic solvents
7.5

Control functions

Control function A Normally closed by spring action
Control function B Normally open by spring action
Control function I Actuating function via reciprocal
pressurization
7.6

Mechanical data

Materials
Valve body Stainless steel 316L
Actuator PA
Seals materials PTFE
(NBR, FKM and EPDM on request)
Packing gland PTFE (carbon-filled)
Type 2012

Installation

8 INSTALLATION
8.1

Safety instructions

DANGER!
Risk of injury from high pressure.
▶ Before loosening the lines and valves, turn off the pressure and
vent the lines.
WARNING!
Risk of injury from improper installation.
▶ Installation may be carried out by authorized technicians only and
with the appropriate tools.
Risk of injury from unintentional activation of the system and
an uncontrolled restart.
▶ Secure system from unintentional activation.
▶ Following installation, ensure a controlled restart.
For control function I – Danger if pilot pressure fails.
For control function I control and resetting occur pneumatically. If
the pressure fails, no defined position is reached.
▶ To ensure a controlled restart, first pressurize the device with pilot
pressure, then switch on the medium.
Risk of injury from moving parts in the device.
▶ Do not reach into openings.
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